Debbie Reynolds' 'greatest fear' was outliving her daughter Carrie Fisher, she once wrote


Debbie Reynolds couldn't fathom losing her daughter, Carrie Fisher.

In her 2013 autobiography, Unsinkable, the iconic actress described fears of losing her daughter after watching other lose their children to their "demons."

EXCLUSIVE: Inside Carrie Fisher and Debbie Reynolds' Unique Mother-Daughter Relationship

"It's not natural to outlive your child. This has always been my greatest fear," Reynolds wrote. "I don't know if I could survive that."

"Carrie is my child and I love her with every ounce of strength I possess," she added.

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Debbie Reynolds and Carrie Fisher through the years
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Debbie Reynolds and Carrie Fisher through the years

Circa 1956, American actor and singer Debbie Reynolds smiles and holds her infant daughter, Carrie Fisher.

(Photo by Jack Albin/Getty Images)

A newcomer to the ranks of fatherhood, Eddie Fisher was named 'Father of the Year in TV' by the National Father's Day Committee. Mrs. Fisher (Debbie Reynolds) and the children presented Fisher with a handsome photo wallet containing their pictures. Carrie Frances is 19 months and son Todd (L) is 4 months old.

(Bettmann via Getty Images)

Actress Debbie Reynolds, still deeply upset over separation from singer Eddie Fisher, was hospitalized here suffering exhaust indigestion. Meanwhile MGM Studios plan to shoot 'around' the actress until here where she is working in The Mating Game. Debbie holds her two children, Carrie and Todd, 8-mos, (right) in this photo made during the current shooting at the site.

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Debbie Reynolds with her daughter Carrie Fisher, 23 months old, smiles as she leaves the house September 9, 1958 to visit friends in Los Angeles, California. Husband Eddie Fisher and Miss Reynolds later revealed their separation.

(Photo by Los Angeles Times via Getty Images)

Carrie Fisher, 3, gives her mother Debbie Reynolds a hug after her afternoon nap in their home November 16, 1959 in West Los Angeles, California.

(Photo by Ray Graham/Los Angeles Times via Getty Images) .

Debbie Reynolds and Eddie Fisher with daughter Carrie Frances born October 21, 1956.

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American actress Debbie Reynolds with her daughter Carrie Fisher.

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Carrie Fisher and Debbie Reynolds.

(Photo by Ron Galella/WireImage)

Debbie Reynolds and Carrie Fisher during 11th Annual American Comedy Awards at The Shrine Auditorium in Los Angeles, California, United States.

(Photo by Ron Galella/WireImage)

Debbie Reynolds with her children Carrie and Todd Fisher, on the site of the new museum that will house her collection of film costumes.

(Photo by Frank Trapper/Corbis via Getty Images)

Actresses Debbie Reynolds (L) and Carrie Fisher (R) arrive at the premiere of 'Star Wars Episode III: Revenge of the Sith,' at the Loews Cineplex Uptown Theatre May 12, 2005 in Washington, DC. Star Wars premiers are taking place across the country tonight.

(Photo by Shaun Heasley/Getty Images)

Actress Carrie Fisher (L) and her mother, actress Debbie Reynolds, arrive for Dame Elizabeth Taylor's 75th birthday party at the Ritz-Carlton, Lake Las Vegas on February 27, 2007 in Henderson, Nevada.

(Photo by Ethan Miller/Getty Images)

Actress Debbie Reynolds (R) unveils the site of the new Hollywood Motion Picture Collection which will house her $30 million collection of movie costumes and props in Hollywood, June 19, 2001, with daughter Carrie Fisher at her side. The movie memorabilia museum, set to open February 2002, will be located at the Hollywood & Highland development which is also the site of the Kodak Theatre, permanent home of the Academy Awards ceremony. 

(Reuters Photographer / Reuters)

Actresses Debbie Reynolds and Carrie Fisher arrive at the premiere of HBO's documentary 'Wishful Drinking' at Linwood Dunn Theater at the Pickford Center for Motion Study on December 7, 2010 in Hollywood, California.

(Photo by Michael Caulfield/WireImage)

Carrie Fisher (L), Debbie Reynolds, and Billie Lourd attend Paley Center & TCM present Debbie Reynolds' Hollywood memorabilia exhibit reception at The Paley Center for Media on June 7, 2011 in Beverly Hills, California.

(Photo by Brian To/FilmMagic)

Actress Debbie Reynolds (L) and her daughter Carrie Fisher (R) arrive at the 2011 Primetime Creative Arts Emmy Awards in Los Angeles September 10, 2011.

(REUTERS/Danny Moloshok)

Actors Debbie Reynolds and Carrie Fisher arrive at the 2011 Primetime Creative Arts Emmy Awards held at the Nokia Theater L.A. Live.

(Photo by Frank Trapper/Corbis via Getty Images)

Actresses Debbie Reynolds, Carrie Fisher and Joely Fisher arrive at the premiere of HBO's documentary 'Wishful Drinking' at Linwood Dunn Theater at the Pickford Center for Motion Study on December 7, 2010 in Hollywood, California.

(Photo by Michael Caulfield/WireImage)

Carrie Fisher and Debbie Reynolds attend the all-star gala and press preview of Profiles in History's Debbie Reynolds-The Auction Finale at Debbie Reynolds's Dance Studio on May 14, 2014 in North Hollywood, California.

(Photo by Earl Gibson III/WireImage)

Actresses Debbie Reynolds (L), recipient of the Screen Actors Guild Life Achievement Award, and Carrie Fisher pose in the press room at the 21st Annual Screen Actors Guild Awards at The Shrine Auditorium on January 25, 2015 in Los Angeles, California.

(Photo by Ethan Miller/Getty Images)

Actress Carrie Fisher (L) and actress Debbie Reynolds attend TNT's 21st Annual Screen Actors Guild Awards at The Shrine Auditorium on January 25, 2015 in Los Angeles, California. 

(Photo by Charley Gallay/WireImage)

Actresses Debbie Reynolds (L), recipient of the Screen Actors Guild Life Achievement Award, and Carrie Fisher pose in the press room at the 21st Annual Screen Actors Guild Awards at The Shrine Auditorium on January 25, 2015 in Los Angeles, California.

(Photo by Ethan Miller/Getty Images)

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Reynolds died on Wednesday, just one day after Carrie's death on Tuesday at the age of 60. An ambulance responded to a call from the actress' Beverly Hills home at 1:02 p.m. and transported her to Cedars-Sinai Medical Center, where she later died. She was 84.

Reynolds' son, Todd Fisher, spoke with ET shortly after his mother's death, revealing that her last words to him were about how much she missed Carrie.

MORE: Debbie Reynolds and Carrie Fisher's Powerful Bond: Looking Back At Their Sweetest Mother-Daughter Moments

"She missed her daughter and wanted to very much be with her," Todd said. "She had been very strong the last several days. [There was] enormous stress on her, obviously. And this morning she said those words to me and 15 minutes later she had a stroke and virtually left."

35 PHOTOS
Debbie Reynolds through the years
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Debbie Reynolds through the years

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THE SINGING NUN (1966) CHAD EVERETT, DEBBIE REYNOLDS SNUN 001FOH
THIS HAPPY FEELING 1958 UI film with Debbie Reynolds and Curd Jurgens
DEBBIE REYNOLDS American film actress about 1970
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HOW SWEET IT IS - 1968 Warner film with Debbie Reynolds
DEBBIE REYNOLDS US film actress ,dancer and singer about 1960
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LOS ANGELES, CA - APRIL 08: Debbie Reynolds visits 'Extra' at The Grove on April 8, 2013 in Los Angeles, California. (Photo by Noel Vasquez/Getty Images for Extra)
HOLLYWOOD, CA - APRIL 14: Actress Debbie Reynolds speaks onstage during Kim Novak being immortalized with a hand and footprint ceremony as part of Day 2 of the 2012 TCM Classic Film Festival at Grauman's Chinese Theatre on April 14, 2012 in Hollywood, California. (Photo by Jason Merritt/WireImage) 22307_010_JM_1047.jpg
BEVERLY HILLS, CA - MARCH 24: Actress Debbie Reynolds attends the Professional Dancers Society's Gypsy Awards Luncheon at The Beverly Hilton Hotel on March 24, 2013 in Beverly Hills, California. (Photo by David Livingston/Getty Images)
BEVERLY HILLS, CA - MARCH 24: Actors Carl Reiner (L) and Debbie Reynolds attend the Professional Dancers Society's Gypsy Awards Luncheon at The Beverly Hilton Hotel on March 24, 2013 in Beverly Hills, California. (Photo by David Livingston/Getty Images)
BEVERLY HILLS, CA - MARCH 24: Actress Debbie Reynolds attends the Professional Dancers Society's Gypsy Awards Luncheon at The Beverly Hilton Hotel on March 24, 2013 in Beverly Hills, California. (Photo by David Livingston/Getty Images)
LOS ANGELES, CA - MAY 06: Actress Debbie Reynolds is seen on May 6, 2014 in Los Angeles, California. (Photo by JMA/Star Max/GC Images)
LOS ANGELES, CA - MAY 6: Debbie Reynolds and Mario Lopez are seen on May 6, 2014 in Los Angeles, California. (Photo by JB Lacroix/GC Images)
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On Thursday, Todd took to Twitter to remember his mother and sister with a heartbreaking drawing of the pair's iconic movie characters -- Star Wars' Princess Leia and Singin' in the Rain's Kathy Selden.

"This is a beautiful love story to witness in my 58 years," he tweeted. "I miss them both so much. Love is everlasting."

WATCH: Joely Fisher 'Inconsolable' After Debbie Reynolds' Death, Inspired to Write a Book

See more in the video above.

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